./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5317dae Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bd16a09b8249550fe27ec1d3745982255d6ee9946403f6860cbcc4680185e804 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 03:29:53,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 03:29:53,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 03:29:53,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 03:29:53,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 03:29:53,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 03:29:53,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 03:29:53,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 03:29:53,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 03:29:53,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 03:29:53,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 03:29:53,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 03:29:53,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 03:29:53,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 03:29:53,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 03:29:53,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 03:29:53,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 03:29:53,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 03:29:53,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 03:29:53,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 03:29:53,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 03:29:53,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 03:29:53,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 03:29:53,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 03:29:53,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 03:29:53,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 03:29:53,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 03:29:53,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 03:29:53,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 03:29:53,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 03:29:53,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 03:29:53,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 03:29:53,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 03:29:53,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 03:29:53,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 03:29:53,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 03:29:53,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 03:29:53,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 03:29:53,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 03:29:53,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 03:29:53,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 03:29:53,354 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-16 03:29:53,378 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 03:29:53,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 03:29:53,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 03:29:53,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 03:29:53,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 03:29:53,379 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 03:29:53,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 03:29:53,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 03:29:53,380 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 03:29:53,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 03:29:53,380 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 03:29:53,380 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 03:29:53,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 03:29:53,382 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 03:29:53,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 03:29:53,382 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-16 03:29:53,382 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-16 03:29:53,382 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-16 03:29:53,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 03:29:53,382 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-16 03:29:53,383 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 03:29:53,383 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 03:29:53,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 03:29:53,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 03:29:53,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 03:29:53,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 03:29:53,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 03:29:53,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 03:29:53,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 03:29:53,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 03:29:53,385 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 03:29:53,385 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 03:29:53,385 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 03:29:53,385 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 03:29:53,386 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd16a09b8249550fe27ec1d3745982255d6ee9946403f6860cbcc4680185e804 [2023-02-16 03:29:53,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 03:29:53,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 03:29:53,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 03:29:53,627 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 03:29:53,627 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 03:29:53,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i [2023-02-16 03:29:54,855 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 03:29:55,118 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 03:29:55,118 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i [2023-02-16 03:29:55,135 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23e52bbab/25fcfd0c8ab04d71ab9b4ed44fa4355a/FLAG4946da42e [2023-02-16 03:29:55,151 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23e52bbab/25fcfd0c8ab04d71ab9b4ed44fa4355a [2023-02-16 03:29:55,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 03:29:55,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 03:29:55,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 03:29:55,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 03:29:55,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 03:29:55,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:29:55" (1/1) ... [2023-02-16 03:29:55,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1610f4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:29:55, skipping insertion in model container [2023-02-16 03:29:55,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:29:55" (1/1) ... [2023-02-16 03:29:55,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 03:29:55,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 03:29:55,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 03:29:55,591 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-02-16 03:29:55,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@251d95f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:29:55, skipping insertion in model container [2023-02-16 03:29:55,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 03:29:55,594 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-02-16 03:29:55,596 INFO L158 Benchmark]: Toolchain (without parser) took 440.41ms. Allocated memory is still 125.8MB. Free memory was 80.6MB in the beginning and 66.8MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-16 03:29:55,597 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory was 97.0MB in the beginning and 97.0MB in the end (delta: 51.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 03:29:55,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 437.83ms. Allocated memory is still 125.8MB. Free memory was 80.2MB in the beginning and 66.8MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-16 03:29:55,600 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory was 97.0MB in the beginning and 97.0MB in the end (delta: 51.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 437.83ms. Allocated memory is still 125.8MB. Free memory was 80.2MB in the beginning and 66.8MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bd16a09b8249550fe27ec1d3745982255d6ee9946403f6860cbcc4680185e804 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 03:29:57,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 03:29:57,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 03:29:57,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 03:29:57,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 03:29:57,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 03:29:57,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 03:29:57,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 03:29:57,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 03:29:57,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 03:29:57,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 03:29:57,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 03:29:57,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 03:29:57,655 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 03:29:57,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 03:29:57,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 03:29:57,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 03:29:57,660 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 03:29:57,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 03:29:57,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 03:29:57,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 03:29:57,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 03:29:57,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 03:29:57,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 03:29:57,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 03:29:57,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 03:29:57,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 03:29:57,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 03:29:57,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 03:29:57,678 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 03:29:57,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 03:29:57,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 03:29:57,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 03:29:57,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 03:29:57,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 03:29:57,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 03:29:57,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 03:29:57,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 03:29:57,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 03:29:57,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 03:29:57,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 03:29:57,691 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-02-16 03:29:57,733 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 03:29:57,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 03:29:57,734 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 03:29:57,734 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 03:29:57,735 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 03:29:57,735 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 03:29:57,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 03:29:57,736 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 03:29:57,736 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 03:29:57,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 03:29:57,737 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 03:29:57,737 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 03:29:57,737 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 03:29:57,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 03:29:57,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 03:29:57,738 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-16 03:29:57,738 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-16 03:29:57,738 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-16 03:29:57,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 03:29:57,739 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-16 03:29:57,739 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-16 03:29:57,739 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-16 03:29:57,739 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 03:29:57,740 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 03:29:57,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 03:29:57,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 03:29:57,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 03:29:57,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 03:29:57,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 03:29:57,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 03:29:57,741 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-16 03:29:57,741 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-16 03:29:57,741 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 03:29:57,742 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 03:29:57,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 03:29:57,742 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-16 03:29:57,742 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 03:29:57,742 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd16a09b8249550fe27ec1d3745982255d6ee9946403f6860cbcc4680185e804 [2023-02-16 03:29:58,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 03:29:58,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 03:29:58,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 03:29:58,090 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 03:29:58,090 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 03:29:58,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i [2023-02-16 03:29:59,425 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 03:29:59,712 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 03:29:59,712 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test6_1.i [2023-02-16 03:29:59,731 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5100e869/9e87332b68c741a982cf4c392bfb3b88/FLAG302679a89 [2023-02-16 03:29:59,749 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5100e869/9e87332b68c741a982cf4c392bfb3b88 [2023-02-16 03:29:59,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 03:29:59,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 03:29:59,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 03:29:59,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 03:29:59,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 03:29:59,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:29:59" (1/1) ... [2023-02-16 03:29:59,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ed9bfde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:29:59, skipping insertion in model container [2023-02-16 03:29:59,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:29:59" (1/1) ... [2023-02-16 03:29:59,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 03:29:59,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 03:30:00,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 03:30:00,268 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-02-16 03:30:00,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 03:30:00,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 03:30:00,330 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 03:30:00,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 03:30:00,426 INFO L208 MainTranslator]: Completed translation [2023-02-16 03:30:00,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:30:00 WrapperNode [2023-02-16 03:30:00,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 03:30:00,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 03:30:00,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 03:30:00,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 03:30:00,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:30:00" (1/1) ... [2023-02-16 03:30:00,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:30:00" (1/1) ... [2023-02-16 03:30:00,480 INFO L138 Inliner]: procedures = 169, calls = 79, calls flagged for inlining = 25, calls inlined = 7, statements flattened = 62 [2023-02-16 03:30:00,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 03:30:00,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 03:30:00,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 03:30:00,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 03:30:00,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:30:00" (1/1) ... [2023-02-16 03:30:00,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:30:00" (1/1) ... [2023-02-16 03:30:00,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:30:00" (1/1) ... [2023-02-16 03:30:00,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:30:00" (1/1) ... [2023-02-16 03:30:00,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:30:00" (1/1) ... [2023-02-16 03:30:00,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:30:00" (1/1) ... [2023-02-16 03:30:00,508 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:30:00" (1/1) ... [2023-02-16 03:30:00,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:30:00" (1/1) ... [2023-02-16 03:30:00,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 03:30:00,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 03:30:00,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 03:30:00,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 03:30:00,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:30:00" (1/1) ... [2023-02-16 03:30:00,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 03:30:00,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 03:30:00,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-16 03:30:00,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-16 03:30:00,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-02-16 03:30:00,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-02-16 03:30:00,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-16 03:30:00,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 03:30:00,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-16 03:30:00,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-16 03:30:00,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-16 03:30:00,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-02-16 03:30:00,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 03:30:00,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 03:30:00,683 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 03:30:00,685 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 03:30:00,889 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 03:30:00,894 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 03:30:00,894 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-16 03:30:00,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 03:30:00 BoogieIcfgContainer [2023-02-16 03:30:00,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 03:30:00,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 03:30:00,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 03:30:00,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 03:30:00,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 03:29:59" (1/3) ... [2023-02-16 03:30:00,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305f3cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 03:30:00, skipping insertion in model container [2023-02-16 03:30:00,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:30:00" (2/3) ... [2023-02-16 03:30:00,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305f3cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 03:30:00, skipping insertion in model container [2023-02-16 03:30:00,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 03:30:00" (3/3) ... [2023-02-16 03:30:00,904 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test6_1.i [2023-02-16 03:30:00,918 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 03:30:00,919 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-02-16 03:30:00,984 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 03:30:00,991 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6a858e58, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 03:30:00,991 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-02-16 03:30:00,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 40 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:01,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-16 03:30:01,002 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:30:01,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:30:01,004 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 10 more)] === [2023-02-16 03:30:01,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:30:01,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1405574468, now seen corresponding path program 1 times [2023-02-16 03:30:01,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:30:01,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994442619] [2023-02-16 03:30:01,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:30:01,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:01,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:30:01,027 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 03:30:01,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-02-16 03:30:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:30:01,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 03:30:01,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:30:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:30:01,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:30:01,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:30:01,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994442619] [2023-02-16 03:30:01,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994442619] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:30:01,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:30:01,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 03:30:01,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618487392] [2023-02-16 03:30:01,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:30:01,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 03:30:01,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:30:01,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 03:30:01,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 03:30:01,370 INFO L87 Difference]: Start difference. First operand has 43 states, 27 states have (on average 1.6666666666666667) internal successors, (45), 40 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:01,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:30:01,475 INFO L93 Difference]: Finished difference Result 80 states and 87 transitions. [2023-02-16 03:30:01,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 03:30:01,478 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-02-16 03:30:01,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:30:01,487 INFO L225 Difference]: With dead ends: 80 [2023-02-16 03:30:01,487 INFO L226 Difference]: Without dead ends: 76 [2023-02-16 03:30:01,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 03:30:01,498 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 37 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 03:30:01,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 214 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:30:01,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-02-16 03:30:01,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 45. [2023-02-16 03:30:01,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 41 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-16 03:30:01,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2023-02-16 03:30:01,537 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 12 [2023-02-16 03:30:01,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:30:01,539 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2023-02-16 03:30:01,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:01,539 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2023-02-16 03:30:01,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-16 03:30:01,540 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:30:01,540 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:30:01,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-02-16 03:30:01,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:01,750 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 10 more)] === [2023-02-16 03:30:01,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:30:01,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1405608821, now seen corresponding path program 1 times [2023-02-16 03:30:01,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:30:01,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4790962] [2023-02-16 03:30:01,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:30:01,751 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:01,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:30:01,753 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 03:30:01,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-02-16 03:30:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:30:01,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 03:30:01,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:30:01,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:30:01,875 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:30:01,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:30:01,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4790962] [2023-02-16 03:30:01,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4790962] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:30:01,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:30:01,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 03:30:01,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444944366] [2023-02-16 03:30:01,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:30:01,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 03:30:01,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:30:01,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 03:30:01,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 03:30:01,883 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:01,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:30:01,920 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2023-02-16 03:30:01,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 03:30:01,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-02-16 03:30:01,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:30:01,924 INFO L225 Difference]: With dead ends: 44 [2023-02-16 03:30:01,924 INFO L226 Difference]: Without dead ends: 44 [2023-02-16 03:30:01,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 03:30:01,931 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 32 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 03:30:01,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 118 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:30:01,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-02-16 03:30:01,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-02-16 03:30:01,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 40 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-16 03:30:01,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2023-02-16 03:30:01,941 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 12 [2023-02-16 03:30:01,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:30:01,941 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2023-02-16 03:30:01,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:01,941 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2023-02-16 03:30:01,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-16 03:30:01,942 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:30:01,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:30:01,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-02-16 03:30:02,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:02,152 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 10 more)] === [2023-02-16 03:30:02,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:30:02,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1146582493, now seen corresponding path program 1 times [2023-02-16 03:30:02,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:30:02,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826791497] [2023-02-16 03:30:02,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:30:02,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:02,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:30:02,157 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 03:30:02,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-02-16 03:30:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:30:02,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 03:30:02,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:30:02,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:30:02,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:30:02,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:30:02,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826791497] [2023-02-16 03:30:02,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826791497] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:30:02,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:30:02,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 03:30:02,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430665993] [2023-02-16 03:30:02,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:30:02,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 03:30:02,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:30:02,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 03:30:02,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 03:30:02,380 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:02,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:30:02,466 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2023-02-16 03:30:02,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 03:30:02,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-02-16 03:30:02,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:30:02,467 INFO L225 Difference]: With dead ends: 60 [2023-02-16 03:30:02,467 INFO L226 Difference]: Without dead ends: 60 [2023-02-16 03:30:02,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-16 03:30:02,469 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 33 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 03:30:02,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 64 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 03:30:02,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-02-16 03:30:02,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 47. [2023-02-16 03:30:02,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 32 states have (on average 1.5625) internal successors, (50), 43 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-16 03:30:02,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2023-02-16 03:30:02,474 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 12 [2023-02-16 03:30:02,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:30:02,474 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2023-02-16 03:30:02,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:02,474 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2023-02-16 03:30:02,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-16 03:30:02,475 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:30:02,475 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:30:02,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-02-16 03:30:02,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:02,684 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 10 more)] === [2023-02-16 03:30:02,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:30:02,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1146582492, now seen corresponding path program 1 times [2023-02-16 03:30:02,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:30:02,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138745037] [2023-02-16 03:30:02,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:30:02,686 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:02,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:30:02,689 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 03:30:02,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-02-16 03:30:02,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:30:02,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-16 03:30:02,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:30:02,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:30:02,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:30:02,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:30:02,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138745037] [2023-02-16 03:30:02,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1138745037] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:30:02,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:30:02,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 03:30:02,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426430446] [2023-02-16 03:30:02,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:30:02,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 03:30:02,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:30:02,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 03:30:02,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 03:30:02,859 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:02,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:30:02,949 INFO L93 Difference]: Finished difference Result 80 states and 89 transitions. [2023-02-16 03:30:02,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 03:30:02,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-02-16 03:30:02,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:30:02,952 INFO L225 Difference]: With dead ends: 80 [2023-02-16 03:30:02,952 INFO L226 Difference]: Without dead ends: 80 [2023-02-16 03:30:02,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-16 03:30:02,953 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 35 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 03:30:02,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 126 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 03:30:02,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-02-16 03:30:02,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 67. [2023-02-16 03:30:02,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.6153846153846154) internal successors, (84), 63 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-16 03:30:02,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2023-02-16 03:30:02,959 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 12 [2023-02-16 03:30:02,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:30:02,959 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2023-02-16 03:30:02,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:02,959 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2023-02-16 03:30:02,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-16 03:30:02,960 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:30:02,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:30:02,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-02-16 03:30:03,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:03,173 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 10 more)] === [2023-02-16 03:30:03,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:30:03,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1146582909, now seen corresponding path program 1 times [2023-02-16 03:30:03,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:30:03,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795409123] [2023-02-16 03:30:03,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:30:03,174 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:03,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:30:03,176 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 03:30:03,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-02-16 03:30:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:30:03,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 03:30:03,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:30:03,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:30:03,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:30:03,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:30:03,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795409123] [2023-02-16 03:30:03,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795409123] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:30:03,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:30:03,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 03:30:03,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663097251] [2023-02-16 03:30:03,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:30:03,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 03:30:03,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:30:03,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 03:30:03,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 03:30:03,268 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:03,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:30:03,311 INFO L93 Difference]: Finished difference Result 73 states and 92 transitions. [2023-02-16 03:30:03,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 03:30:03,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-02-16 03:30:03,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:30:03,312 INFO L225 Difference]: With dead ends: 73 [2023-02-16 03:30:03,312 INFO L226 Difference]: Without dead ends: 73 [2023-02-16 03:30:03,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-16 03:30:03,315 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 16 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 03:30:03,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 150 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:30:03,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-02-16 03:30:03,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 69. [2023-02-16 03:30:03,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 54 states have (on average 1.5925925925925926) internal successors, (86), 65 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-16 03:30:03,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 89 transitions. [2023-02-16 03:30:03,334 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 89 transitions. Word has length 12 [2023-02-16 03:30:03,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:30:03,334 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 89 transitions. [2023-02-16 03:30:03,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:03,335 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2023-02-16 03:30:03,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-16 03:30:03,335 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:30:03,335 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:30:03,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-02-16 03:30:03,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:03,544 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 10 more)] === [2023-02-16 03:30:03,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:30:03,544 INFO L85 PathProgramCache]: Analyzing trace with hash 624200559, now seen corresponding path program 1 times [2023-02-16 03:30:03,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:30:03,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657316390] [2023-02-16 03:30:03,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:30:03,545 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:03,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:30:03,546 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 03:30:03,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-02-16 03:30:03,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:30:03,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-16 03:30:03,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:30:03,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:30:03,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:30:03,671 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:30:03,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657316390] [2023-02-16 03:30:03,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1657316390] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:30:03,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:30:03,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 03:30:03,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904756223] [2023-02-16 03:30:03,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:30:03,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-16 03:30:03,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:30:03,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 03:30:03,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-02-16 03:30:03,673 INFO L87 Difference]: Start difference. First operand 69 states and 89 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:03,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:30:03,746 INFO L93 Difference]: Finished difference Result 81 states and 90 transitions. [2023-02-16 03:30:03,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 03:30:03,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-02-16 03:30:03,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:30:03,747 INFO L225 Difference]: With dead ends: 81 [2023-02-16 03:30:03,747 INFO L226 Difference]: Without dead ends: 81 [2023-02-16 03:30:03,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-02-16 03:30:03,748 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 91 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 03:30:03,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 137 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 03:30:03,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-02-16 03:30:03,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 69. [2023-02-16 03:30:03,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 54 states have (on average 1.5740740740740742) internal successors, (85), 65 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-16 03:30:03,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2023-02-16 03:30:03,753 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 88 transitions. Word has length 13 [2023-02-16 03:30:03,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:30:03,754 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 88 transitions. [2023-02-16 03:30:03,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:03,754 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2023-02-16 03:30:03,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-16 03:30:03,755 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:30:03,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:30:03,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-02-16 03:30:03,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:03,964 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 10 more)] === [2023-02-16 03:30:03,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:30:03,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1183253904, now seen corresponding path program 1 times [2023-02-16 03:30:03,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:30:03,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111428094] [2023-02-16 03:30:03,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:30:03,965 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:03,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:30:03,966 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 03:30:03,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-02-16 03:30:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:30:04,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-16 03:30:04,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:30:04,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:30:04,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:30:04,054 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:30:04,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111428094] [2023-02-16 03:30:04,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111428094] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:30:04,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:30:04,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 03:30:04,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882415086] [2023-02-16 03:30:04,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:30:04,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 03:30:04,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:30:04,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 03:30:04,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 03:30:04,065 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:04,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:30:04,088 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2023-02-16 03:30:04,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 03:30:04,089 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-02-16 03:30:04,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:30:04,089 INFO L225 Difference]: With dead ends: 52 [2023-02-16 03:30:04,090 INFO L226 Difference]: Without dead ends: 52 [2023-02-16 03:30:04,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 03:30:04,090 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 6 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 03:30:04,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 161 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:30:04,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-02-16 03:30:04,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 49. [2023-02-16 03:30:04,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 35 states have (on average 1.457142857142857) internal successors, (51), 45 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-16 03:30:04,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2023-02-16 03:30:04,094 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 13 [2023-02-16 03:30:04,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:30:04,094 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2023-02-16 03:30:04,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:04,095 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2023-02-16 03:30:04,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-16 03:30:04,095 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:30:04,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:30:04,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-02-16 03:30:04,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:04,305 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 10 more)] === [2023-02-16 03:30:04,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:30:04,305 INFO L85 PathProgramCache]: Analyzing trace with hash -2124619081, now seen corresponding path program 1 times [2023-02-16 03:30:04,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:30:04,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352613481] [2023-02-16 03:30:04,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:30:04,306 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:04,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:30:04,307 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 03:30:04,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-02-16 03:30:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:30:04,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 03:30:04,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:30:04,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-02-16 03:30:04,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:30:04,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:30:04,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:30:04,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352613481] [2023-02-16 03:30:04,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1352613481] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:30:04,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:30:04,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 03:30:04,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405703080] [2023-02-16 03:30:04,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:30:04,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 03:30:04,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:30:04,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 03:30:04,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 03:30:04,402 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:04,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:30:04,489 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2023-02-16 03:30:04,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 03:30:04,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-02-16 03:30:04,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:30:04,490 INFO L225 Difference]: With dead ends: 61 [2023-02-16 03:30:04,490 INFO L226 Difference]: Without dead ends: 61 [2023-02-16 03:30:04,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 03:30:04,491 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 23 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 03:30:04,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 106 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 03:30:04,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-02-16 03:30:04,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 48. [2023-02-16 03:30:04,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 44 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-16 03:30:04,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2023-02-16 03:30:04,494 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 14 [2023-02-16 03:30:04,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:30:04,494 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2023-02-16 03:30:04,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:04,494 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2023-02-16 03:30:04,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-16 03:30:04,495 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:30:04,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:30:04,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-02-16 03:30:04,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:04,704 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 10 more)] === [2023-02-16 03:30:04,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:30:04,704 INFO L85 PathProgramCache]: Analyzing trace with hash -2124571317, now seen corresponding path program 1 times [2023-02-16 03:30:04,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:30:04,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008011377] [2023-02-16 03:30:04,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:30:04,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:04,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:30:04,708 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 03:30:04,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-02-16 03:30:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:30:04,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-16 03:30:04,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:30:04,852 WARN L859 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#res.base| (_ BitVec 32))) (and (exists ((v_ArrVal_12 (_ BitVec 32))) (= |c_#length| (store |c_old(#length)| |ldv_malloc_#res.base| v_ArrVal_12))) (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#res.base|)))) is different from true [2023-02-16 03:30:04,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 03:30:04,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-02-16 03:30:04,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:30:04,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:30:04,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:30:04,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008011377] [2023-02-16 03:30:04,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008011377] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:30:04,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:30:04,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 03:30:04,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566879905] [2023-02-16 03:30:04,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:30:04,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-16 03:30:04,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:30:04,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-16 03:30:04,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=21, Unknown=1, NotChecked=8, Total=42 [2023-02-16 03:30:04,993 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:05,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:30:05,185 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2023-02-16 03:30:05,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-16 03:30:05,185 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-02-16 03:30:05,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:30:05,186 INFO L225 Difference]: With dead ends: 58 [2023-02-16 03:30:05,186 INFO L226 Difference]: Without dead ends: 58 [2023-02-16 03:30:05,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=51, Unknown=1, NotChecked=14, Total=90 [2023-02-16 03:30:05,186 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 81 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 03:30:05,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 73 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 59 Invalid, 0 Unknown, 55 Unchecked, 0.1s Time] [2023-02-16 03:30:05,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-02-16 03:30:05,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 45. [2023-02-16 03:30:05,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 34 states have (on average 1.3529411764705883) internal successors, (46), 41 states have internal predecessors, (46), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-16 03:30:05,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2023-02-16 03:30:05,189 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 14 [2023-02-16 03:30:05,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:30:05,189 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2023-02-16 03:30:05,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:05,190 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2023-02-16 03:30:05,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-16 03:30:05,190 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:30:05,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:30:05,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-02-16 03:30:05,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:05,391 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 10 more)] === [2023-02-16 03:30:05,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:30:05,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1940820388, now seen corresponding path program 1 times [2023-02-16 03:30:05,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:30:05,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074619608] [2023-02-16 03:30:05,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:30:05,392 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:05,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:30:05,393 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 03:30:05,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-02-16 03:30:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:30:05,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 03:30:05,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:30:05,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:30:05,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:30:05,497 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:30:05,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074619608] [2023-02-16 03:30:05,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074619608] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:30:05,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:30:05,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:30:05,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79929817] [2023-02-16 03:30:05,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:30:05,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 03:30:05,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:30:05,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 03:30:05,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 03:30:05,499 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:05,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:30:05,541 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2023-02-16 03:30:05,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 03:30:05,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-02-16 03:30:05,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:30:05,542 INFO L225 Difference]: With dead ends: 48 [2023-02-16 03:30:05,542 INFO L226 Difference]: Without dead ends: 39 [2023-02-16 03:30:05,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 03:30:05,543 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 03:30:05,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 92 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:30:05,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-02-16 03:30:05,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-02-16 03:30:05,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 36 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:05,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2023-02-16 03:30:05,546 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 14 [2023-02-16 03:30:05,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:30:05,546 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2023-02-16 03:30:05,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:05,546 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2023-02-16 03:30:05,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-16 03:30:05,547 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:30:05,547 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:30:05,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-02-16 03:30:05,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:05,747 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 10 more)] === [2023-02-16 03:30:05,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:30:05,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1603618566, now seen corresponding path program 1 times [2023-02-16 03:30:05,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:30:05,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675766343] [2023-02-16 03:30:05,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:30:05,748 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:05,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:30:05,749 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 03:30:05,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-02-16 03:30:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:30:05,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 03:30:05,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:30:05,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:30:05,811 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:30:05,812 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:30:05,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675766343] [2023-02-16 03:30:05,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [675766343] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:30:05,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:30:05,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 03:30:05,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894917186] [2023-02-16 03:30:05,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:30:05,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 03:30:05,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:30:05,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 03:30:05,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 03:30:05,818 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:05,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:30:05,835 INFO L93 Difference]: Finished difference Result 45 states and 47 transitions. [2023-02-16 03:30:05,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 03:30:05,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-02-16 03:30:05,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:30:05,836 INFO L225 Difference]: With dead ends: 45 [2023-02-16 03:30:05,836 INFO L226 Difference]: Without dead ends: 45 [2023-02-16 03:30:05,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-16 03:30:05,837 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 9 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 03:30:05,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 103 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:30:05,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-02-16 03:30:05,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2023-02-16 03:30:05,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 38 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:05,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2023-02-16 03:30:05,840 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 16 [2023-02-16 03:30:05,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:30:05,840 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2023-02-16 03:30:05,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:05,840 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2023-02-16 03:30:05,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-16 03:30:05,841 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:30:05,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:30:05,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-02-16 03:30:06,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:06,050 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 10 more)] === [2023-02-16 03:30:06,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:30:06,051 INFO L85 PathProgramCache]: Analyzing trace with hash 406071093, now seen corresponding path program 1 times [2023-02-16 03:30:06,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:30:06,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1592533209] [2023-02-16 03:30:06,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:30:06,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:06,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:30:06,052 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 03:30:06,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-02-16 03:30:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:30:06,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-16 03:30:06,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:30:06,181 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-02-16 03:30:06,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-02-16 03:30:06,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 20 [2023-02-16 03:30:06,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:30:06,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:30:06,273 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:30:06,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1592533209] [2023-02-16 03:30:06,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1592533209] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:30:06,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:30:06,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 03:30:06,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819672677] [2023-02-16 03:30:06,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:30:06,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-16 03:30:06,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:30:06,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-16 03:30:06,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-02-16 03:30:06,275 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:06,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:30:06,404 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2023-02-16 03:30:06,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-16 03:30:06,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-02-16 03:30:06,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:30:06,405 INFO L225 Difference]: With dead ends: 46 [2023-02-16 03:30:06,405 INFO L226 Difference]: Without dead ends: 46 [2023-02-16 03:30:06,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-02-16 03:30:06,406 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 43 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 03:30:06,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 80 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 03:30:06,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-02-16 03:30:06,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2023-02-16 03:30:06,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 32 states have (on average 1.375) internal successors, (44), 39 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:06,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2023-02-16 03:30:06,408 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 17 [2023-02-16 03:30:06,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:30:06,408 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2023-02-16 03:30:06,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:06,409 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2023-02-16 03:30:06,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-16 03:30:06,409 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:30:06,409 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:30:06,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-02-16 03:30:06,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:06,616 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 10 more)] === [2023-02-16 03:30:06,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:30:06,616 INFO L85 PathProgramCache]: Analyzing trace with hash 406071094, now seen corresponding path program 1 times [2023-02-16 03:30:06,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:30:06,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300035720] [2023-02-16 03:30:06,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:30:06,617 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:06,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:30:06,619 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 03:30:06,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-02-16 03:30:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:30:06,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-16 03:30:06,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:30:08,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-16 03:30:08,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-02-16 03:30:08,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:30:08,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:30:08,944 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:30:08,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300035720] [2023-02-16 03:30:08,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300035720] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:30:08,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:30:08,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 03:30:08,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686235086] [2023-02-16 03:30:08,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:30:08,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-16 03:30:08,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:30:08,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 03:30:08,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=18, Unknown=2, NotChecked=0, Total=30 [2023-02-16 03:30:08,946 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:09,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:30:09,196 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2023-02-16 03:30:09,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 03:30:09,197 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-02-16 03:30:09,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:30:09,197 INFO L225 Difference]: With dead ends: 50 [2023-02-16 03:30:09,197 INFO L226 Difference]: Without dead ends: 50 [2023-02-16 03:30:09,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=20, Invalid=34, Unknown=2, NotChecked=0, Total=56 [2023-02-16 03:30:09,198 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 41 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 03:30:09,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 80 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 20 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 03:30:09,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-02-16 03:30:09,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 38. [2023-02-16 03:30:09,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 35 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:09,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2023-02-16 03:30:09,200 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 17 [2023-02-16 03:30:09,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:30:09,200 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2023-02-16 03:30:09,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:09,200 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2023-02-16 03:30:09,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-16 03:30:09,201 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:30:09,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:30:09,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-02-16 03:30:09,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:09,401 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 10 more)] === [2023-02-16 03:30:09,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:30:09,402 INFO L85 PathProgramCache]: Analyzing trace with hash 406070677, now seen corresponding path program 1 times [2023-02-16 03:30:09,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:30:09,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46849046] [2023-02-16 03:30:09,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:30:09,402 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:09,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:30:09,403 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 03:30:09,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-02-16 03:30:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:30:09,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 03:30:09,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:30:09,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:30:09,505 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:30:09,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 03:30:09,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [46849046] [2023-02-16 03:30:09,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [46849046] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:30:09,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:30:09,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 03:30:09,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180867618] [2023-02-16 03:30:09,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:30:09,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 03:30:09,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 03:30:09,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 03:30:09,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 03:30:09,508 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:09,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:30:09,566 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2023-02-16 03:30:09,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 03:30:09,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-02-16 03:30:09,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:30:09,568 INFO L225 Difference]: With dead ends: 44 [2023-02-16 03:30:09,568 INFO L226 Difference]: Without dead ends: 44 [2023-02-16 03:30:09,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-16 03:30:09,569 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 15 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 03:30:09,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 125 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:30:09,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-02-16 03:30:09,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2023-02-16 03:30:09,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 35 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:09,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2023-02-16 03:30:09,571 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 17 [2023-02-16 03:30:09,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:30:09,571 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2023-02-16 03:30:09,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:30:09,571 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2023-02-16 03:30:09,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-16 03:30:09,572 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:30:09,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:30:09,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-02-16 03:30:09,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:09,772 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 10 more)] === [2023-02-16 03:30:09,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:30:09,773 INFO L85 PathProgramCache]: Analyzing trace with hash 816218203, now seen corresponding path program 1 times [2023-02-16 03:30:09,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 03:30:09,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461037348] [2023-02-16 03:30:09,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:30:09,773 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:09,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 03:30:09,774 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 03:30:09,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-02-16 03:30:09,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 03:30:09,830 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 03:30:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 03:30:09,874 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-02-16 03:30:09,875 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-16 03:30:09,876 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2023-02-16 03:30:09,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 13 remaining) [2023-02-16 03:30:09,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2023-02-16 03:30:09,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (9 of 13 remaining) [2023-02-16 03:30:09,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE (8 of 13 remaining) [2023-02-16 03:30:09,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (7 of 13 remaining) [2023-02-16 03:30:09,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2023-02-16 03:30:09,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2023-02-16 03:30:09,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE (4 of 13 remaining) [2023-02-16 03:30:09,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_FREE (3 of 13 remaining) [2023-02-16 03:30:09,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_FREE (2 of 13 remaining) [2023-02-16 03:30:09,878 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 13 remaining) [2023-02-16 03:30:09,879 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 13 remaining) [2023-02-16 03:30:09,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-02-16 03:30:10,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 03:30:10,082 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:30:10,085 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-16 03:30:10,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 03:30:10 BoogieIcfgContainer [2023-02-16 03:30:10,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-16 03:30:10,116 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-16 03:30:10,116 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-16 03:30:10,116 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-16 03:30:10,117 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 03:30:00" (3/4) ... [2023-02-16 03:30:10,119 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-16 03:30:10,119 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-16 03:30:10,120 INFO L158 Benchmark]: Toolchain (without parser) took 10366.78ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 43.0MB in the beginning and 46.0MB in the end (delta: -3.0MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2023-02-16 03:30:10,120 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 54.5MB. Free memory was 31.3MB in the beginning and 31.3MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 03:30:10,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 672.15ms. Allocated memory is still 71.3MB. Free memory was 42.8MB in the beginning and 47.7MB in the end (delta: -4.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-02-16 03:30:10,121 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.07ms. Allocated memory is still 71.3MB. Free memory was 47.7MB in the beginning and 45.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 03:30:10,122 INFO L158 Benchmark]: Boogie Preprocessor took 30.07ms. Allocated memory is still 71.3MB. Free memory was 45.4MB in the beginning and 43.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 03:30:10,122 INFO L158 Benchmark]: RCFGBuilder took 384.62ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 43.8MB in the beginning and 62.3MB in the end (delta: -18.5MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2023-02-16 03:30:10,122 INFO L158 Benchmark]: TraceAbstraction took 9217.13ms. Allocated memory is still 86.0MB. Free memory was 61.9MB in the beginning and 46.7MB in the end (delta: 15.2MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2023-02-16 03:30:10,122 INFO L158 Benchmark]: Witness Printer took 3.69ms. Allocated memory is still 86.0MB. Free memory was 46.7MB in the beginning and 46.0MB in the end (delta: 694.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 03:30:10,129 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 54.5MB. Free memory was 31.3MB in the beginning and 31.3MB in the end (delta: 45.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 672.15ms. Allocated memory is still 71.3MB. Free memory was 42.8MB in the beginning and 47.7MB in the end (delta: -4.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.07ms. Allocated memory is still 71.3MB. Free memory was 47.7MB in the beginning and 45.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.07ms. Allocated memory is still 71.3MB. Free memory was 45.4MB in the beginning and 43.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 384.62ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 43.8MB in the beginning and 62.3MB in the end (delta: -18.5MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9217.13ms. Allocated memory is still 86.0MB. Free memory was 61.9MB in the beginning and 46.7MB in the end (delta: 15.2MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * Witness Printer took 3.69ms. Allocated memory is still 86.0MB. Free memory was 46.7MB in the beginning and 46.0MB in the end (delta: 694.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 791]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 791. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L783] struct A a6; VAL [a6={2:0}, ldv_global_msg_list={1:0}] [L792] CALL entry_point() [L785] CALL, EXPR probe2_6(&a6) [L764] int ret = - -3; VAL [a={2:0}, a={2:0}, a6={2:0}, ldv_global_msg_list={1:0}, ret=3] [L765] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, a6={2:0}, ldv_global_msg_list={1:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L765] RET, EXPR ldv_malloc(sizeof(int)) VAL [a={2:0}, a={2:0}, a6={2:0}, ldv_global_msg_list={1:0}, ldv_malloc(sizeof(int))={6:0}, ret=3] [L765] int *p = (int *)ldv_malloc(sizeof(int)); [L766] COND FALSE !(p==0) [L768] CALL, EXPR f6() [L758] return __VERIFIER_nondet_int(); [L768] RET, EXPR f6() [L768] ret = f6() [L769] COND FALSE !(ret<0) [L771] CALL, EXPR g6() [L761] return __VERIFIER_nondet_int(); [L771] RET, EXPR g6() [L771] ret = g6() [L772] COND TRUE ret<0 [L773] return ret; VAL [\result=-2147483648, a={2:0}, a={2:0}, a6={2:0}, ldv_global_msg_list={1:0}, p={6:0}, ret=-2147483648] [L785] RET, EXPR probe2_6(&a6) [L785] int ret = probe2_6(&a6); [L786] COND FALSE !(ret==0) VAL [a6={2:0}, ldv_global_msg_list={1:0}, ret=-2147483648] [L789] a6.p = 0 VAL [a6={2:0}, ldv_global_msg_list={1:0}, ret=-2147483648] [L792] RET entry_point() - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 777]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 781]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 43 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 9.1s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 mSolverCounterUnknown, 462 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 462 mSDsluCounter, 1629 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 55 IncrementalHoareTripleChecker+Unchecked, 1097 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 528 IncrementalHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 532 mSDtfsCounter, 528 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 195 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=5, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 128 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 213 NumberOfCodeBlocks, 213 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 181 ConstructedInterpolants, 6 QuantifiedInterpolants, 1153 SizeOfPredicates, 19 NumberOfNonLiveVariables, 756 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-02-16 03:30:10,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample